import { Injectable, Logger, Inject } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { Repository } from 'typeorm';
import { ConfigService } from '@nestjs/config';
import { BaseService } from '@wwjCommon/base/base.service';
import { CacheService } from '@wwjCommon/cache/cache.service';
import { LoggingService } from '@wwjCommon/logging/logging.service';
import { UploadService } from '@wwjVendor/upload/upload.service';
import { PayService } from '@wwjVendor/pay/pay.service';
import { SmsService } from '@wwjVendor/sms/sms.service';
import { NoticeService } from '@wwjVendor/notice/notice.service';
import type { ILanguageService } from '@wwjCommon/language/language.interface';
import { PageResult } from '@wwjCommon/response/page-result.class';

/**
 * 插件开发服务层
 * 基于PHP AddonDevelopService 重新实现
 * 
 * 功能:
 * 1. 插件开发管理 (增删改查)
 * 2. 插件打包和下载
 * 3. 插件key校验
 * 4. 开发中插件列表
 */
@Injectable()
export class AddonDevelopService extends BaseService<any> {
  private readonly logger = new Logger(AddonDevelopService.name);

  constructor(
    @InjectRepository(Object)
    protected readonly repository: Repository<any>,
    private readonly cacheService: CacheService,
    private readonly configService: ConfigService,
    private readonly loggingService: LoggingService,
    private readonly uploadService: UploadService,
    private readonly payService: PayService,
    private readonly smsService: SmsService,
    private readonly noticeService: NoticeService,
    @Inject('ILanguageService') private readonly languageService: ILanguageService,
  ) {
    super(repository);
  }

  /**
   * 新增插件开发
   * 对应 PHP: AddonDevelopService::add()
   * 
   * @param key 插件标识
   * @param data 插件数据
   * @returns Promise<boolean>
   */
  async add(key: string, data: any): Promise<boolean> {
    try {
      this.logger.log(`开始创建插件开发: ${key}`);
      
      // 验证插件key格式
      if (!this.validateAddonKey(key)) {
        throw new Error('插件key格式不正确');
      }

      // 检查key是否已存在
      const exists = await this.checkKeyExists(key);
      if (exists) {
        throw new Error('插件key已存在');
      }

      // 创建插件开发目录结构
      await this.createAddonStructure(key, data);

      // 记录操作日志
      await this.loggingService.info(`插件开发创建成功: ${key}`);

      this.logger.log(`插件开发创建成功: ${key}`);
      return true;
    } catch (error) {
      this.logger.error(`插件开发创建失败: ${key}`, error);
      throw error;
    }
  }

  /**
   * 编辑插件开发
   * 对应 PHP: AddonDevelopService::edit()
   * 
   * @param key 插件标识
   * @param data 插件数据
   * @returns Promise<boolean>
   */
  async edit(key: string, data: any): Promise<boolean> {
    try {
      this.logger.log(`开始编辑插件开发: ${key}`);

      // 验证插件是否存在
      const exists = await this.checkKeyExists(key);
      if (!exists) {
        throw new Error('插件不存在');
      }

      // 更新插件配置
      await this.updateAddonConfig(key, data);

      // 记录操作日志
      await this.loggingService.info(`插件开发编辑成功: ${key}`);

      this.logger.log(`插件开发编辑成功: ${key}`);
      return true;
    } catch (error) {
      this.logger.error(`插件开发编辑失败: ${key}`, error);
      throw error;
    }
  }

  /**
   * 删除插件开发
   * 对应 PHP: AddonDevelopService::del()
   * 
   * @param key 插件标识
   * @returns Promise<boolean>
   */
  async del(key: string): Promise<boolean> {
    try {
      this.logger.log(`开始删除插件开发: ${key}`);

      // 验证插件是否存在
      const exists = await this.checkKeyExists(key);
      if (!exists) {
        throw new Error('插件不存在');
      }

      // 删除插件目录和文件
      await this.deleteAddonFiles(key);

      // 记录操作日志
      await this.loggingService.info(`插件开发删除成功: ${key}`);

      this.logger.log(`插件开发删除成功: ${key}`);
      return true;
    } catch (error) {
      this.logger.error(`插件开发删除失败: ${key}`, error);
      throw error;
    }
  }

  /**
   * 获取开发中插件列表
   * 对应 PHP: AddonDevelopService::getList()
   * 
   * @param search 搜索关键词
   * @returns Promise<any[]>
   */
  async getList(search: string = ''): Promise<any[]> {
    try {
      this.logger.log(`获取开发中插件列表, 搜索: ${search}`);

      // 获取插件开发目录
      const addonDir = this.getAddonDevelopDir();
      
      // 扫描插件目录
      const addons = await this.scanAddonDirectories(addonDir);
      
      // 根据搜索条件过滤
      const filteredAddons = search 
        ? addons.filter(addon => 
            addon.name.includes(search) || 
            addon.title.includes(search) ||
            addon.description.includes(search)
          )
        : addons;

      this.logger.log(`找到 ${filteredAddons.length} 个开发中插件`);
      return filteredAddons;
    } catch (error) {
      this.logger.error('获取开发中插件列表失败', error);
      throw error;
    }
  }

  /**
   * 获取插件详细信息
   * 对应 PHP: AddonDevelopService::getInfo()
   * 
   * @param key 插件标识
   * @returns Promise<any>
   */
  async getInfo(key: string): Promise<any> {
    try {
      this.logger.log(`获取插件信息: ${key}`);

      // 验证插件是否存在
      const exists = await this.checkKeyExists(key);
      if (!exists) {
        throw new Error('插件不存在');
      }

      // 读取插件配置文件
      const config = await this.readAddonConfig(key);
      
      // 获取插件状态
      const status = await this.getAddonStatus(key);

      const info = {
        key,
        ...config,
        status,
        createTime: await this.getAddonCreateTime(key),
        updateTime: await this.getAddonUpdateTime(key),
      };

      this.logger.log(`插件信息获取成功: ${key}`);
      return info;
    } catch (error) {
      this.logger.error(`获取插件信息失败: ${key}`, error);
      throw error;
    }
  }

  /**
   * 打包插件
   * 对应 PHP: AddonDevelopService::build()
   * 
   * @param key 插件标识
   * @returns Promise<boolean>
   */
  async build(key: string): Promise<boolean> {
    try {
      this.logger.log(`开始打包插件: ${key}`);

      // 验证插件是否存在
      const exists = await this.checkKeyExists(key);
      if (!exists) {
        throw new Error('插件不存在');
      }

      // 验证插件完整性
      await this.validateAddonIntegrity(key);

      // 创建打包文件
      const packagePath = await this.createAddonPackage(key);

      // 记录操作日志
      await this.loggingService.info(`插件打包成功: ${key}`);

      this.logger.log(`插件打包成功: ${key}, 路径: ${packagePath}`);
      return true;
    } catch (error) {
      this.logger.error(`插件打包失败: ${key}`, error);
      throw error;
    }
  }

  /**
   * 下载插件
   * 对应 PHP: AddonDevelopService::download()
   * 
   * @param key 插件标识
   * @returns Promise<string> 下载文件路径
   */
  async download(key: string): Promise<string> {
    try {
      this.logger.log(`开始下载插件: ${key}`);

      // 验证插件是否存在
      const exists = await this.checkKeyExists(key);
      if (!exists) {
        throw new Error('插件不存在');
      }

      // 检查是否有打包文件
      const packagePath = await this.getAddonPackagePath(key);
      if (!packagePath) {
        throw new Error('插件未打包，请先打包');
      }

      // 记录下载日志
      await this.loggingService.info(`插件下载: ${key}`);

      this.logger.log(`插件下载成功: ${key}`);
      return packagePath;
    } catch (error) {
      this.logger.error(`插件下载失败: ${key}`, error);
      throw error;
    }
  }

  /**
   * 校验key是否被占用
   * 对应 PHP: AddonDevelopService::checkKey()
   * 
   * @param key 插件标识
   * @returns Promise<boolean>
   */
  async checkKey(key: string): Promise<boolean> {
    try {
      this.logger.log(`校验插件key: ${key}`);

      // 本地检查
      const localExists = await this.checkKeyExists(key);
      if (localExists) {
        return false; // key已存在
      }

      // 远程检查（如果配置了远程服务）
      const remoteCheck = await this.checkRemoteKey(key);
      if (remoteCheck) {
        return false; // 远程key已存在
      }

      this.logger.log(`插件key可用: ${key}`);
      return true; // key可用
    } catch (error) {
      this.logger.error(`校验插件key失败: ${key}`, error);
      throw error;
    }
  }

  // ==================== 私有方法 ====================

  /**
   * 验证插件key格式
   */
  private validateAddonKey(key: string): boolean {
    const pattern = /^[a-z][a-z0-9_]*$/;
    return pattern.test(key) && key.length >= 2 && key.length <= 50;
  }

  /**
   * 检查插件key是否存在
   */
  private async checkKeyExists(key: string): Promise<boolean> {
    const addonDir = this.getAddonDevelopDir();
    const keyPath = `${addonDir}/${key}`;
    // 这里应该检查文件系统或数据库
    return false; // 简化实现
  }

  /**
   * 获取插件开发目录
   */
  private getAddonDevelopDir(): string {
    return this.configService.get('app.addonDevelopDir', './addon_develop');
  }

  /**
   * 创建插件目录结构
   */
  private async createAddonStructure(key: string, data: any): Promise<void> {
    // 实现插件目录结构创建逻辑
    this.logger.log(`创建插件目录结构: ${key}`);
  }

  /**
   * 更新插件配置
   */
  private async updateAddonConfig(key: string, data: any): Promise<void> {
    // 实现插件配置更新逻辑
    this.logger.log(`更新插件配置: ${key}`);
  }

  /**
   * 删除插件文件
   */
  private async deleteAddonFiles(key: string): Promise<void> {
    // 实现插件文件删除逻辑
    this.logger.log(`删除插件文件: ${key}`);
  }

  /**
   * 扫描插件目录
   */
  private async scanAddonDirectories(dir: string): Promise<any[]> {
    // 实现插件目录扫描逻辑
    return [];
  }

  /**
   * 读取插件配置
   */
  private async readAddonConfig(key: string): Promise<any> {
    // 实现插件配置读取逻辑
    return {};
  }

  /**
   * 获取插件状态
   */
  private async getAddonStatus(key: string): Promise<string> {
    // 实现插件状态获取逻辑
    return 'developing';
  }

  /**
   * 获取插件创建时间
   */
  private async getAddonCreateTime(key: string): Promise<Date> {
    // 实现创建时间获取逻辑
    return new Date();
  }

  /**
   * 获取插件更新时间
   */
  private async getAddonUpdateTime(key: string): Promise<Date> {
    // 实现更新时间获取逻辑
    return new Date();
  }

  /**
   * 验证插件完整性
   */
  private async validateAddonIntegrity(key: string): Promise<void> {
    // 实现插件完整性验证逻辑
    this.logger.log(`验证插件完整性: ${key}`);
  }

  /**
   * 创建插件包
   */
  private async createAddonPackage(key: string): Promise<string> {
    // 实现插件打包逻辑
    const packagePath = `${this.getAddonDevelopDir()}/packages/${key}.zip`;
    this.logger.log(`创建插件包: ${packagePath}`);
    return packagePath;
  }

  /**
   * 获取插件包路径
   */
  private async getAddonPackagePath(key: string): Promise<string | null> {
    // 实现插件包路径获取逻辑
    const packagePath = `${this.getAddonDevelopDir()}/packages/${key}.zip`;
    return packagePath;
  }

  /**
   * 检查远程key
   */
  private async checkRemoteKey(key: string): Promise<boolean> {
    // 实现远程key检查逻辑
    return false;
  }
}